Company 21, 26 and Truck 22 and EMS dispatched class one to 4955 Route 209 in Washington Township at the Tractor Supply Store for a report of smoke in a structure. Truck 22 responded with 7, and on arrival, set up on side A in front of a 1 story commercial retail store. The store had a loss of power and an odor of something burning inside. Engine, Rescue and Tanker 21 were set up on the C/D side and Engine and Tanker 26 were on the A/D corner. Crews went interior with thermal cameras to check conditions and found nothing. The Truck crew went to the roof to check conditions there and everything was normal. Investigation by the 21 crew found the three phase electrical meter appeared to be cocked in the base. Command released mutual aid companies and the Truck went available.